It's difficult to sum up a generation when only basing it on a handful of kids. I think there are some who only know certain genres of music but also you have lots of younger folks who do know all types. Every generation has the people who stick with current pop culture and people who bounce all around and explore various decades of pop culture. I remember the ol' 8tracks and records from my parents. Still have some Zeppelin records that I collected in my early twenties.